Video editing method and digital device therefor

ABSTRACT

A method for editing the playback speed of a partial sequence of video and a digital device therefor are disclosed. A video editing method includes providing a timeline interface corresponding to a video sequence, receiving a first user input for specifying a first location on the timeline interface and a second user input for specifying a second location on the timeline interface, setting an editing interval between the first location and the second location of the timeline interface, receiving a third user input with respect to the editing interval, adjusting at least one of the thickness and length of the editing interval in response to the third user input, and editing playback attributes of the partial sequence based on the adjusted thickness and length of the editing interval.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application is a 37 C.F.R. §1.53(b) continuation ofco-pending U.S. patent application Ser. No. 13/593,306 filed Aug. 23,2012, which claims the benefit of U.S. Provisional Application No.61/657,042 filed on Jun. 8, 2012, and Korean Patent Application No.10-2012-0077353, filed on Jul. 16, 2012, the entire contents of allwhich are hereby incorporated by reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a video editing method and a digitaldevice therefor, and more particularly, to a method for editing aplayback speed of a partial sequence of video and a digital devicetherefor.

2. Discussion of the Related Art

Various applications or programs for video editing have been developed.Such video editing includes copy, deletion, and playback speedadjustment of at least one interval of a video sequence. Video sequenceediting may be performed with respect to each preset interval of a videosequence according to an editing application or may be performed withrespect to an interval designated by a user. For the video sequenceediting, a user input for selecting an interval to be edited and a userinput for performing a detailed editing operation with respect to theselected interval should be received.

Meanwhile, recent development of digital device technology makes itpossible to perform various types of user inputs such as a touch inputand a gesture input as well as a user input through a mouse or apointer. Accordingly, the video editing application needs to provide auser interface which is capable of easily editing a video sequencethrough various types of user inputs. Especially, a video editingapplication is needed which can edit the video sequence through a simpleuser input and can intuitively represent an editing result.

SUMMARY OF THE INVENTION

An object of the present invention is to provide a video editing methodwhich is capable of editing a video sequence through a simple andintuitive user input.

Another object of the present invention is to provide a method forintuitively providing an editing result of a video sequence edited by auser input to a user.

A further object of the present invention is to provide a method forproviding an interface capable of intuitively comparing, in the case ofadjustment of the playback speed and playback duration of a partialinterval of a video sequence, the adjusted playback speed and playbackduration with the playback speed and playback duration of anotherinterval of the video sequence.

Additional advantages, objects, and features of the invention will beset forth in part in the description which follows and in part willbecome apparent to those having ordinary skill in the art uponexamination of the following or may be learned from practice of theinvention. The objectives and other advantages of the invention may berealized and attained by the structure particularly pointed out in thewritten description and claims hereof as well as the appended drawings.

To achieve these objects and other advantages and in accordance with thepurpose of the invention, as embodied and broadly described herein, avideo editing method includes providing a timeline interfacecorresponding to a video sequence; receiving a first user input forspecifying a first location on the timeline interface and a second userinput for specifying a second location on the timeline interface,wherein the first location corresponds to a first frame of the videosequence and the second location corresponds to a second frame of thevideo sequence; setting an editing interval between the first locationand the second location of the timeline interface, wherein the settingincludes providing a first indicator corresponding to the first frameand a second indicator corresponding to the second frame at both ends ofthe editing interval, at least one of the first indicator and the secondindicator is movable on the timeline interface, the editing intervalcorresponds to a partial sequence of the video sequence, and the partialsequence is a sequence between the first frame and the second frame ofthe video sequence; receiving a third user input with respect to theediting interval, wherein the third user input includes an input ofsliding at least one object of the timeline interface on the timelineinterface; adjusting at least one of the thickness and length of theediting interval in response to the third user input, wherein thethickness of the editing interval is proportional to the playback speedof the partial sequence and the length of the editing interval isproportional to the playback duration of the partial sequence; andediting playback attributes of the partial sequence based on theadjusted thickness and length of the editing interval, wherein theplayback attributes of the partial sequence include the playback speedof the partial sequence.

In another aspect of the present invention, a digital device includes aprocessor for controlling operation of the digital device; a sensor unitfor receiving a user input and transmitting the user input to theprocessor; and a display unit for outputting images based on a commandof the processor, wherein the processor provides a timeline interfacecorresponding to a video sequence, receives a first user input forspecifying a first location on the timeline interface and a second userinput for specifying a second location on the timeline interface,wherein the first location corresponds to a first frame of the videosequence and the second location corresponds to a second frame of thevideo sequence, sets an editing interval between the first location andthe second location of the timeline interface, wherein a first indicatorcorresponding to the first frame and a second indicator corresponding tothe second frame are provided at both ends of the editing interval, atleast one of the first indicator and the second indicator is movable onthe timeline interface, the editing interval corresponds to a partialsequence of the video sequence, and the partial sequence is a sequencebetween the first frame and the second frame of the video sequence,receives a third user input with respect to the editing interval,wherein the third user input includes an input of sliding at least oneobject of the timeline interface on the timeline interface, adjusts atleast one of the thickness and length of the editing interval inresponse to the third user input, wherein the thickness of the editinginterval is proportional to the playback speed of the partial sequenceand the length of the editing interval is proportional to the playbackduration of the partial sequence, and edits playback attributes of thepartial sequence based on the adjusted thickness and length of theediting interval, wherein the playback attributes of the partialsequence include the playback speed of the partial sequence.

It is to be understood that both the foregoing general description andthe following detailed description of the present invention areexemplary and explanatory and are intended to provide furtherexplanation of the invention as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are included to provide a furtherunderstanding of the invention and are incorporated in and constitute apart of this application, illustrate embodiment(s) of the invention andtogether with the description serve to explain the principle of theinvention. In the drawings:

FIG. 1 is a diagram schematically illustrating a video editing UIaccording to an embodiment of the present invention;

FIGS. 2A and 2B are diagrams illustrating an editing interval settingmethod for editing a motion picture sequence according to an embodimentof the present invention;

FIGS. 3A to 6 are diagrams illustrating a video editing method accordingto an embodiment of the present invention;

FIGS. 7A to 8C are diagrams illustrating a video editing methodaccording to another embodiment of the present invention;

FIGS. 9A to 9D are diagrams illustrating a video editing method usingfirst and second indicators according to an embodiment of the presentinvention;

FIGS. 10A to 10C are diagrams illustrating a video editing methodaccording to still another embodiment of the present invention;

FIGS. 11A to 15C are diagrams illustrating a detailed embodiment of avideo editing method of the present invention;

FIG. 16 is a diagram illustrating a timeline interface edited through avideo editing UI according to an embodiment of the present invention;

FIG. 17 is a block diagram illustrating a digital device according to anembodiment of the present invention; and

FIG. 18 is a flowchart illustrating a video editing method according toan embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

Reference will now be made in detail to the preferred embodiments of thepresent invention, examples of which are illustrated in the accompanyingdrawings. Wherever possible, the same reference numbers will be usedthroughout the drawings to refer to the same or like parts.

Most terms disclosed in the present invention are defined inconsideration of functions of the present invention and correspond togeneral teens well known in the art and may vary according to intentionof those skilled in the art, usual practices, or introduction of newtechnologies. Some of the terms mentioned in the description of thepresent invention may have been selected by the applicant at his or herdiscretion, and in such cases the detailed meanings thereof will bedescribed in relevant parts of the description herein. Thus, the termsused in this specification should be interpreted based on thesubstantial meanings of the terms and the whole content of thisspecification rather than their simple names or meanings.

The present invention relates to a video editing method and a digitaldevice therefor. More specifically, the present invention relates amethod for editing a digital video sequence which can be played backthrough a digital storage medium, data communication, etc. In thepresent invention, a video sequence refers to a set of a plurality offrames included in corresponding video and may include information aboutplayback order of the frames, i.e. a playback sequence. The videosequence may include playback attributes such as the playback speed andplayback duration of the video sequence. The present invention providesa video editing User Interface (UI) for editing the video sequence and adevice including the video editing UI. Video sequence editing mayinclude playback speed adjustment, playback order adjustment, copy, anddeletion for a partial area of the video sequence. The video editing UIaccording to the embodiment of the present invention may be implementedin a digital device in the form of an application or program.Hereinafter, each control operation of the digital device includes acontrol operation performed through the video editing UI of the presentinvention.

FIG. 1 illustrates a video editing UI according to an embodiment of thepresent invention. The video editing UI may be displayed in a displayunit 12 of a digital device 10 and provides a timeline interface 100 forvideo editing. The timeline interface 100 corresponds to a videosequence which is being edited and may display at least one thumbnailimage 102 of the video sequence at a preset interval. The thumbnailimage 102 may indicate an image of a specific frame of the videosequence. Namely, the thumbnail image 102 may indicate an image of aframe corresponding to the location of each thumbnail image 102 on thetimeline interface 100. According to the exemplary embodiment of thepresent invention, the digital device 10 may adjust a preset interval ofthe thumbnail image 102 in correspondence to the playback speed of thevideo sequence. In other words, if the playback speed of the videosequence is adjusted to be increased, the digital device 10 may narrowthe preset interval of the thumbnail image 102, and if the playbackspeed of the video sequence is adjusted to be decreased, the digitaldevice 10 may widen the preset interval of the thumbnail image 102.

Meanwhile, the display unit 12 of the digital device 10 may display animage 25 of at least one frame of a video sequence which is being editedthrough the video editing UI. The frame for display may be a framecorresponding to a user input on the timeline interface 100 or a framewhich is being output by the video editing UI. According to theembodiment of the present invention, the digital device 10 may edit avideo sequence in response to a user input with respect to the timelineinterface 100 of the video editing UI.

FIGS. 2A and 2B illustrate an editing interval setting method forediting a motion picture sequence. Referring to FIGS. 2A and 2B, thedigital device 10 may receive a first user input 20 a and a second userinput 20 b with respect to specific locations on the timeline interface100 and set an editing interval 130 on the timeline interface 100.According to this embodiment, the editing interval 130 corresponds to apartial sequence 3 for editing playback attributes in a video sequence1. The digital device 10 may receive user inputs for the editinginterval 130 and adjust the playback attributes of the partial sequence3 based on the user inputs.

More specifically, referring to FIG. 2A, the digital device 10 mayreceive the first user input 20 a for specifying a first location on thetimeline interface 100. The first location on the timeline interface 100corresponds to a first frame 5 a of the video sequence 1. Accordingly,the digital device 10 may specify the first frame 5 a of the videosequence 1 in response to the first user input 20 a for the firstlocation. Referring to FIG. 2B, the digital device 10 may receive thesecond user input 20 b for specifying a second location on the timelineinterface 100. The second location on the timeline interface 100corresponds to a second frame 5 b of the video sequence 1. Accordingly,the digital device 10 may specify the second frame 5 b of the videosequence 1 in response to the second user input 20 b for the secondlocation.

In the embodiment of the present invention, the first location and thesecond location may be different locations on the timeline interface100. The first location may precede or follow the second location on thetimeline interface 100. The first user input 20 a and the second userinput 20 b may be performed with respect to specific locations on thetimeline interface 100 or with respect to specific locations on avirtual track corresponding to the timeline interface 100.

In this way, if the first frame 5 a and the second frame 5 b arespecified on the video sequence 1, the digital device 10 may set asequence between the first frame 5 a and the second frame 5 b as thepartial sequence 3. The partial sequence 3 of the present invention isan interval selected to edit playback attributes in the video sequence1. Meanwhile, the digital device 10 may set the editing interval 130between the first location and the second location on the timelineinterface 100. The editing interval 130 of the timeline interface 100corresponds to the partial sequence 3. A user may adjust the playbackattributes of the partial sequence 3 through a user input for theediting interval 130.

In the present embodiment, the editing interval 130 may indicate theplayback attributes of the partial sequence 3. That is, the length ofthe editing interval 130 may indicate the playback duration of thepartial sequence 3 and the thickness of the editing interval 130 mayindicate the playback speed of the partial sequence 3. Morespecifically, the digital device 10 may adjust the length of the editinginterval 130 such that it is proportional to the playback duration ofthe partial sequence 3. In this case, the length of the editing interval130 is the length of a first axis direction of the editing interval 130and the first axis direction may be a time axis direction of thetimeline interface 100. In the present invention, the length of theediting interval 130 is enlarged as the playback duration of the partialsequence 3 increases and is shortened as the playback duration of thepartial sequence 3 decreases. The digital device 10 may also adjust thethickness of the editing interval 130 such that it is proportional tothe playback speed of the partial sequence 3. In this case, thethickness of the editing interval 130 is the length of a second axisdirection of the editing interval and the second axis direction may be adirection orthogonal to the time axis direction of the timelineinterface 100. In the present invention, the thickness of the editinginterval 130 is enlarged as the playback speed of the partial sequence 3increases and is reduced as the playback speed of the partial sequence 3decreases. A user can be intuitively aware of variations in the playbackspeed and playback duration of the partial sequence 3 through variationsin the thickness and length of the editing interval 130 caused byadjustment of the editing interval 130. A detailed description thereofwill be given later.

Meanwhile, according to an embodiment of the present invention, framescorresponding to locations at which the user inputs 20 a and 20 b areperformed on the timeline interface 100 may be selected as the first andsecond frames 5 a and 5 b. According to another embodiment of thepresent invention, random access pictures nearest in time to framescorresponding to locations at which the user inputs 20 a and 20 b areperformed on the timeline interface 100 may be selected as the first andsecond frames 5 a and 5 b.

In the present embodiment, the first input 20 a and the second userinput 20 b include various types of user input. If a user input is atouch input, the first and second user inputs 20 a and 20 b may includevarious touch inputs such as single touch, double touch, and touch anddrag on the timeline interface 100. The digital device 10 of the presentinvention may select the first and second frames 5 a and 5 b in responseto each touch input. For example, if the first user input 20 a is singletouch, the digital device 10 may set a frame corresponding to a locationat which the single touch is performed as the first frame 5 a. If thefirst user input 20 a is double touch, the digital device 10 may set aframe corresponding to a location at which final touch of the doubletouch is performed within a preset time duration as the first frame 5 a.If the first user input 20 a is touch and drag, the digital device 10may set a frame corresponding to a location at which a touch and dragoperation is ended as the first frame 5 a.

Meanwhile, the second user input 20 b may be performed at the same timewith the first user input 20 a or after the first user input 20 a. Inthe present invention, the second frame 5 b may be set through thesecond user input 20 b. A setting method of the second frame 5 baccording to the type of a user input is the same as that of the firstframe 5 a. Various other input means may be used for the first andsecond user inputs 20 a and 20 b in the present invention and thepresent invention is not limited to the above-described user inputs.

According to the embodiment of the present invention, the digital device10 may provide, on the timeline interface 100, a first indicator 110corresponding to the first frame 5 a and a second indicator 120corresponding to the second frame 5 b. In the present invention, thefirst and second indicators 110 and 120 are located at both ends of theediting interval 130 on the timeline interface 100. At least one of thefirst and second indicators 110 and 120 is movable on the timelineinterface 100. In this embodiment, the first and second indicators 110and 120 indicate the first and second frames 5 a and 5 b, respectively,constituting the partial sequence 3.

In the embodiment of the present invention, if the editing interval 130is set on the timeline interface 100, first and second intervals 132 and134 may be located based on both sides of the editing interval 130. Thefirst interval 132 and the second interval 134 are partial intervals ofthe timeline interface 100 and are adjacent to both sides of the editinginterval 130. Namely, the first interval 132 is an interval adjacent tothe first indicator 110 of the editing interval 130 and the secondinterval 134 is an interval adjacent to the second indicator 120 of theediting interval 130.

Meanwhile, upon receiving the first and second user inputs 20 a and 20b, the digital device 10 may display images of the frames 5 a and 5 bcorresponding to the user inputs 20 a and 20 b on the display unit 12.Namely, in FIG. 2A, if the first user input 20 a is received, thedigital device 10 may display an image 25 a of the first frame 5 acorresponding to the first user input 20 a on the display unit 12. InFIG. 2B, upon receiving the second user input 20 b, the digital device10 may display an image 25 b of the second frame 5 b corresponding tothe second user input 20 b on the display unit 12.

FIGS. 3A to 6 illustrate a video editing method according to anembodiment of the present invention. Referring to FIGS. 3A to 6, thedigital device 10 may perform video editing based on an input of slidingat least one partial interval of the timeline interface 100. In thisembodiment, sliding refers to continuous movement of a sliding targetobject, wherein at least one other object on the timeline interface 100moves dependently on the sliding target object. That is, if a targetobject on the timeline interface 100 is slid by a user input, the targetobject may move while maintaining an adjacent state to at least oneother object (or objects) adjacent to the target object on the timelineinterface 100. In this case, the at least one other object (or objects)adjacent to the target object may move together with the target objectaccording to sliding of the target object. In the embodiment of thepresent invention, a sliding input may be performed in various ways suchas touch and drag, click and drag, point movement, direction switchinginterface (e.g. direction switching key) input, and preset gestureaccording to the type of a user input.

Referring to FIGS. 3A to 3C, the digital device 10 may perform videoediting based on an input of sliding at least one of the first interval132 and the second interval 134 on the timeline interface 100. Morespecifically, the digital device 10 may receive an input of sliding atleast one of the first interval 132 and the second interval 134, resetthe partial sequence 3 based on the sliding input, and adjust theplayback speed of the partial sequence 3 and the thickness of theediting interval 130. The embodiment of FIGS. 3A to 3C explains theoperation of the digital device 10 when the sliding input of the secondinterval 134 of the timeline interface 100 is received. Even when thesliding input of the first interval 132 of the timeline interface 100 isreceived, the digital device 10 may perform video editing using the sameor corresponding method as a method which will be described hereinbelow.

First, as shown in FIG. 3A, if the first and second frames 5 a and 5 bare set by first and second user inputs, n frames between the first andsecond frames 5 a and 5 b constitute the partial sequence 3. The partialsequence 3 has a playback duration of t0. Meanwhile, the editinginterval 130 corresponding to the partial sequence 3 is set on thetimeline interface 100. The editing interval 130 includes the firstindicator 110 corresponding to the first frame 5 a of the partialsequence 3 and the second indicator 120 corresponding to the secondframe 5 b of the partial sequence 3. In the present invention, the firstinterval 132 of the timeline interface 100 is an interval adjacent tothe first indicator 110 and the second interval 134 of the timelineinterface 100 is an interval adjacent to the second indicator 120.

Next, as illustrated in FIGS. 3B and 3C, the digital device 10 mayreceive a third user input 20 c of sliding the second interval 134. Thedigital device 10 changes the second frame 5 b corresponding to thesecond indicator 120. In this case, the first frame 5 a corresponding tothe first indicator 110 may be fixed. If the second frame 5 bcorresponding to the second indicator 120 is changed, the number offrames of the partial sequence 3 may also be changed. In this case, thepartial sequence 3 may have the same playback duration compared with aplayback duration prior to change of the number of frames and thus thepartial sequence 3 may have a playback speed different from a playbackspeed prior to change of the number of frames. The digital device 10 ofthe present invention adjusts the thickness of the editing interval 130while keeping the length of the editing interval 130 constant in orderto indicate variation in the playback speed of the partial sequence 3.

For example, as illustrated in FIG. 3B, if the third user input 20 c ofsliding the second interval 134 toward the editing interval 130 isreceived, the digital device 10 resets the second frame corresponding tothe second indicator 120 to 5 b_1. According to the third user input 20c through which frames are inserted into the partial sequence 3, thepartial sequence 3 includes n1 (n1>n) frames, which is greater than thenumber of frames prior to the third user input 20 c, with respect to thesame playback duration of t0. In addition, the partial sequence 3 has afaster playback speed than prior to the third user input 20 c. Thedigital device 10 of the present invention enlarges the thickness of theediting interval 130 in order to indicate variation in the playbackspeed of the partial sequence 3. The thickness of the editing interval130 may be enlarged in proportion to the playback speed of the partialsequence 3. Accordingly, a user can intuitively recognize that theplayback speed of the partial sequence 3 corresponding to the editinginterval 130 in the video sequence 1 has been adjusted to be increased.Meanwhile, the playback duration t0 of the partial sequence 3 is notchanged by the third user input 20 c, the digital device 10 keeps thelength of the edition interval 130 constant. Meanwhile, the digitaldevice 10 may display an image 25 b_1 of the reset second frame 5 b_1 onthe display unit 12 in response to the third user input 20 c.

On the other hand, as illustrated in FIG. 3C, upon receiving the thirduser input 20 c of sliding the second interval 134 to the opposite sideof the editing interval 130, the digital device 10 resets the secondframe corresponding to the second indicator 120 to 5 b_2. According tothe third user input 20 c through which frames are extracted from thepartial sequence 3, the partial sequence 3 includes n2 (n2<n) frames,which is less than the number of frames prior to the third user input 20c, with respect to the same playback duration t0. In addition, thepartial sequence 3 has a slower playback speed than a playback speedprior to the third user input 20 c. The digital device 10 of the presentinvention shortens the thickness of the editing interval 130 in order toindicate variation in the playback speed of the partial sequence 3. Inthis case, the thickness of the editing interval 130 may be shortened inproportion to the playback speed of the partial sequence 3. Accordingly,a user can intuitively recognize that the playback speed of the partialsequence 3 corresponding to the editing region 130 in the video sequence1 has been adjusted to be decreased. Meanwhile, the playback duration t0of the partial sequence 3 is not changed by the third user input 20 c,the digital device 10 keeps the length of the edition interval 130constant. The digital device 10 may display an image 25 b_2 of the resetsecond frame 5 b_2 on the display unit 12 in response to the third userinput 20 c.

According to an embodiment of the present invention, the digital device10 may receive the third user input 20 c of sliding the first interval132. Then, the digital device 10 changes the first frame correspondingto the first indicator 110 in response to the third user input 20 c. Inthis case, the second frame corresponding to the second indicator 120may be fixed. The digital device 10 may adjust the thickness of theediting interval 130 according to variation in the partial sequence 3caused by resetting of the first frame. For a detailed method thereof,reference may be made to the description of FIGS. 3A to 3C.

Meanwhile, the digital device 10 may receive the third user input 20 cof sliding both the first interval 132 and the second interval 134. Inthis case, the digital device 10 may reset both the first framecorresponding to the first indicator 110 and the second framecorresponding to the second indicator 120. The playback speed of thepartial sequence 3 is determined based on the number of frames betweenthe reset first frame and the reset second frame. The digital device 10may adjust the thickness of the editing interval 130 in correspondenceto the changed playback speed.

Referring to FIGS. 4A to 5B, the digital device 10 may perform videoediting based on an input of sliding the editing interval 130.

First, as illustrated in FIG. 4B, the digital device 10 may receive thethird user input 20 c of sliding the editing interval 130 to the firstinterval 132 or the second interval 134. Thus, if the user input throughwhich frames of the partial sequence 3 corresponding to the editinginterval 130 are extracted toward the first interval 132 or the secondinterval 134 is received, the digital device 10 may reduce the thicknessof the editing interval 130 based on the user input.

For example, as illustrated in FIG. 4A, the partial sequence 3 mayinclude n frames during a playback duration of t0. In this case, if thethird user input 20 c of sliding the editing interval 3 toward thesecond interval 134 is received as illustrated in FIG. 4B, the digitaldevice 10 resets the second frame corresponding to the second indicator120 to 5 b_2. Then, the partial sequence 3 includes n2 (n2<n) frames,which is less than the number of frames prior to the third user input 20c, with respect to the same playback duration t0. Then, the partialsequence 3 has a slower playback speed than a playback speed prior tothe third user input 20 c. The digital device 10 of the presentinvention shortens the thickness of the editing interval 130 in order toindicate variation in the playback speed of the partial sequence 3. Thethickness of the editing interval 130 may be shortened in proportion tothe playback speed of the partial sequence 3. Meanwhile, the digitaldevice 10 may display an image 25 b_2 of the reset second frame 5 b_2 onthe display unit 12 in response to the third user input 20 c.

According to an embodiment of the present invention, the digital device10 may receive the third user input 20 c of sliding the editing interval3 to the first interval 132. The digital device 10 resets the firstframe corresponding to the first indicator 110. The digital device 10may reduce the thickness of the editing interval 130 according tovariation in the partial sequence 3 caused by resetting of the firstframe. For a detailed method thereof, reference may be made to thedescription of FIG. 4B.

According to another embodiment of the present invention illustrated inFIGS. 5A and 5B, the third user input 20 c of sliding the editinginterval 130 may include an input for inserting frames into the partialsequence 3. In this case, the third user input 20 c may include an inputof sliding the editing interval 30 while holding any one of the firstindicator 110 and the second indicator 120.

For example, as illustrated in FIG. 5A, the digital device 10 mayreceive the third user input 20 c of sliding the editing interval 130while holding the first indicator 110. The partial sequence 3corresponding to the editing interval 130 includes n frames with respectto a playback duration of t0. In this case, the digital device 10 mayreset the second frame corresponding to the second indicator 120 inresponse to the third user input 20 c. Further, the digital device 10may adjust the thickness of the editing interval 130 based on resettingof the partial sequence 3 including the second frame.

Namely, as shown in FIG. 5B, a user may perform the third user input 20c of sliding the editing interval 130 toward the first indicator 110while holding the first indicator 110. The digital device 10 receivesthe third user input 20 c and resets the second frame corresponding tothe second indicator 120 as 5 b_1. According to the third user input 20c through which frames are inserted into the partial sequence 3, thepartial sequence 3 includes n1 (n1>n) frames, which is greater than thenumber of frames prior to the third user input 20 c, with respect to thesame playback duration of t0. In addition, the partial sequence 3 has afaster playback speed than a playback speed prior to the third userinput 20 c. The digital device 10 of the present invention may enlargethe thickness of the editing interval 130 in order to indicate variationin the playback speed of the partial sequence 3.

On the other hand, a user may perform the third user input 20 c ofsliding the editing interval 130 to the opposite side of the firstindicator 110 while holding the first indicator 110. Then the digitaldevice 10 resets the second frame corresponding to the second indicator120 as in the embodiment shown in FIG. 3C and may shorten the thicknessof the editing interval 130. Moreover, in an embodiment of the presentinvention, the digital device 10 may receive the third user input ofsliding the editing interval 130 while holding the second indicator 120.In this case, the digital device may reset the first frame correspondingto the first indicator 110 and adjust the thickness of the editinginterval 130 based on the reset partial sequence including the resetfirst frame. For a detailed embodiment thereof, reference may be made tothe description of FIGS. 5A and 5B.

In this embodiment, upon receiving the user input of sliding the editinginterval 139, the digital device 10 may adjust a thickness adjustmentscale of the editing interval 130 in proportion to the thickness of theediting interval 130. For example, in the embodiment of FIGS. 3A to 3C,if the third user input 20 c of sliding the first interval 132 or thesecond interval 134 by a length s is received, the number of frames ofthe video sequence 1 corresponding to the sliding length s may become m.However, in the embodiments of FIGS. 4A to 5B, the number of frames ofthe video sequence 1 corresponding to the sliding length s with respectto the third user input 20 c of sliding the editing interval 130 by thelength s may become different. For example, if the thickness of theediting interval 130 is twice the thickness of the timeline interface100, the number of frames of the video sequence 1 corresponding to thesliding length s of the editing interval 130 may be 2 m. Accordingly,the digital device 10 may adjust variation in the thickness of theediting interval 130 in response to the third user input of sliding theediting interval 130 such that it is twice variation in the thicknesswith respect to the input of sliding the first interval 132 or thesecond interval 134. If the thickness of the editing interval 130 is ½times the thickness of the timeline interface 100, the number of framesof the video sequence 1 corresponding to the sliding length s may be(½)m. Therefore, the digital device 10 may adjust variation in thethickness of the editing interval 130 in response to the third userinput of sliding the editing interval 130 such that it is ½ timesvariation in the thickness with respect to the input of sliding thefirst interval 132 or the second interval 134.

FIG. 6 illustrates another embodiment of the present invention.Referring to FIG. 6, the digital device 10 may reverse the editinginterval 130 in response to the third user input 20 c for rotating theediting interval 130. FIG. 6 shows a reversed state of the editinginterval 130 illustrated in FIG. 5A through the third user input 20 c.If the editing interval 130 is reversed, the digital device 10 adjuststhe second indicator 120 such that it is adjacent to the first interval132 of the timeline interface 100 and adjusts the first indicator 110such that it is adjacent to the second interval 134 of the timelineinterface 100. At this time, the digital device 10 may adjust theediting interval 130 after reversing the editing interval 130 so as tohave the same thickness and length as before reversing the editinginterval 130. The digital device 10 arranges frames of the partialsequence 3 in reverse playback order from the second frame 5 b to thefirst frame 5 a. Then the partial sequence 3 includes a reversedplayback sequence from the second frame 5 b to the first frame 5 a.Meanwhile, the playback duration t0 of the reversed partial sequence 3is the same as the playback time t0 of the partial sequence 3 prior toreversing the editing interval shown in FIG. 5A. That is, the reversedpartial sequence 3 reversely plays n frames during a duration t0.

FIGS. 7A to 8C illustrate a video editing method according anotherembodiment of the present invention. According to the embodiment of thepresent invention of FIGS. 7A to 8C, the digital device 10 may performvideo editing in response to a user input of sliding at least one of thefirst indicator 110 and the second indicator 120. More specifically, thedigital device 10 may receive an input of sliding at least one of thefirst indicator 110 and the second indicator 120, adjust at least one ofthe thickness and length of the editing interval 130, and edit theplayback attributes of the partial sequence 3.

FIGS. 7A to 7E illustrate an embodiment for performing video editing inresponse to a user input of sliding any one of the first indicator 110or the second indicator 120. Hereinafter, a method through which thedigital device 10 performs video editing in response to the third userinput 20 c of sliding the second indicator 120 will be described withreference to FIGS. 7A to 7E. The digital device 10 according to theembodiment of the present invention may perform video editing using thesame or corresponding method even in response to the third user input ofsliding the first indicator 110.

As illustrated in FIG. 7A, if the first frame 5 a and the second frame 5b are set by a first user input and a second user input, n framesbetween the first frame 5 a and the second frame 5 b constitute thepartial sequence 3 having a playback duration of t0. The digital device10 according to the present embodiment may receive the third user input20 c of sliding the second indicator 120, adjust the editing interval130, and edit the playback attributes of the partial sequence 3. Here,the digital device 10 adjusts the playback speed and playback durationof the partial sequence 3 while maintaining the number of frames of thepartial sequence 3 at n.

FIG. 7B shows the user input 20 c of sliding the second indicator 120toward the opposite side of the first indicator 110. FIG. 7C shows theuser input 20 c of sliding the second indicator 120 toward the firstindicator 110.

If the distance between the first indicator 110 and the second indicator120 become longer by the third user input 20 c as illustrated in FIG.7B, the length of the editing interval 130 is enlarged. The length ofthe editing interval 130 is proportional to the playback duration of thepartial sequence 3. Accordingly, the playback duration of the partialsequence 3 is changed to t1 which is longer than the prior playbackduration t0. Since the partial sequence 3 includes the n frames which isthe same as the number of frames prior to the third user input 20 c, thepartial sequence 3 has a slower playback speed than a playback speedprior to the third user input 20 c. The digital device 10 of the presentinvention reduces the thickness of the editing interval 130 in order toindicate variation in the playback speed of the partial sequence 3. Thethickness of the editing interval 130 may be reduced in proportion tothe playback speed of the partial sequence 3.

In contrast, if the distance between the first indicator 110 and thesecond indicator 120 becomes shorter by the third user input 20 c asillustrated in FIG. 7C, the length of the editing interval 130 isshortened. Accordingly, the playback duration of the partial sequence 3is changed to t2 which is shorter than the playback duration t0. Sincethe partial sequence 3 includes the n frames, the partial sequence 3 hasa faster playback speed than the playback speed prior to the third userinput 20 c. The digital device 10 of the present invention enlarges thethickness of the editing interval 130 in order to indicate variation inthe playback speed of the partial sequence 3. The thickness of theediting interval 130 may be enlarged in proportion to the playback speedof the partial sequence 3.

FIG. 7D illustrates another embodiment of the present invention.Referring to FIG. 7D, positions of the first indicator 110 and thesecond indicator 120 may be interchanged by the third user input 20 c ofsliding any one of the first indicator 110 or the second indictor 120.If the positions of the first and second indicators 110 and 120 areinterchanged with each other, the digital device 10 adjusts the secondindicator 120 such that it is adjacent to the first interval 132 of thetimeline interface 100 and adjusts the first indicator 110 such that itis adjacent to the second interval 134 of the timeline interface 100. Inaddition, the digital device 10 reversely arranges playback order offrames of the partial sequence 3 from the second frame 5 b to the firstframe 5 a. Then the partial sequence 3 configures a reversed playbacksequence from the second frame 5 b to the first frame 5 a. Meanwhile, aplayback duration t3 of the reversed partial sequence 3 is determinedbased on the distance between the interchanged first and secondindicators 110 and 120. The playback speed of the partial sequence 3 isa speed at which n frames are played back during the duration of t3. Thedigital device 10 adjusts the thickness of the editing interval 130 suchthat it is proportional to the playback speed of the partial sequence 3.

FIG. 7E illustrates still another embodiment of the present invention inwhich the digital device 10 may provide an interface for deleting atleast one of the first indicator 110 and the second indicator 120. Forexample, the digital device 10 may provide a button for deleting each ofthe first indicator 110 and the second indicator 120. Alternatively, thedigital device 10 may delete the first indicator 110 or the secondindicator 120 in response to a preset user input. In the embodiment ofFIG. 7E, the digital device 10 may delete the first indicator 110 or thesecond indicator 120 in response to the third user input 20 c forextracting the first indicator 110 or the second indicator 120 from thetimeline interface 100. As shown in FIG. 7E, if the second indictor 120is deleted from the timeline interface 100 by the third user input 20 c,the digital device 10 may release the setting of the editing intervalbetween the first indicator 110 and the second indicator 120. Inaddition, the digital device 10 may release the setting of the secondframe corresponding to the second indicator 120 and may also release thesetting of the partial sequence between the first frame 5 a and thereleased second frame. If the thickness of the released editing intervalhas been adjusted from the basic thickness of the timeline interface100, the digital device 10 may restore the thickness of thecorresponding editing interval to the basic thickness of the timelineinterface 100. The digital device may also restore the playback speed ofthe released partial sequence to the basic playback speed of the videosequence 1.

Next, FIGS. 8A to 8C illustrate an embodiment in which the digitaldevice 10 performs video editing in response to a user input of slidingboth the first indicator 110 and the second indicator 120. As shown inFIG. 8A, if the partial sequence 3 including n frames is set between thefirst frame 5 a and the second frame 5 b and the editing interval 130corresponding to the partial sequence 3 is set on the timeline interface100, the digital device 10 may receive the third user input 20 c ofsliding both the first indicator 110 and the second indicator 120. Thedigital device 10 adjusts the playback speed and playback duration ofthe partial sequence 3 while maintaining the number of frames of thepartial sequence 3 at n.

If the distance between the first indicator 110 and the second indicator120 becomes longer by the third user input 20 c as illustrated in FIG.8B, the length of the editing interval 130 is enlarged. In this case,the playback duration of the partial sequence 3 is changed to t1 whichis longer than a prior playback duration t0. Since the playback speed ofthe partial sequence is decreased, the digital device 10 reduces thethickness of the editing interval 130. For a detailed descriptionthereof, reference may be made to the description of FIG. 7B.

In contrast, if the distance between the first indicator 110 and thesecond indicator 120 becomes shorter by the third user input 20 c asillustrated in FIG. 8C, the length of the editing interval 130 isshortened. At this time, the playback duration of the partial sequence 3is changed to t2 which is shorter than the playback duration t0. Sincethe playback speed of the partial sequence 3 is increased, the digitaldevice 10 enlarges the thickness of the editing interval 130. For adetailed description thereof, reference may be made to the earlierdescription of FIG. 7C.

FIGS. 9A to 9D illustrate a video editing method according to anotherembodiment of the present invention. As shown in FIG. 9A, the firstindicator 110 and the second indicator 120 according to the embodimentof the present invention may include body parts 110 a and 120 a andadjustment parts 110 b and 120 b, respectively. The adjustment parts 110b and 120 b are interfaces for performing additional functions of thecorresponding indicators 110 and 120 and location shifting thereof ispossible on the timeline interface 100 by a user input. In thisembodiment, location shifting indicates that a target object forlocation shifting is independently shifted on the timeline interface100. Namely, even if the location of the target object on the timelineinterface 100 is shifted by a user input, the other objects on thetimeline interface 100 except for the target object are not shifted. Inthe embodiment of the present invention, a location shifting input maybe performed in various ways as described earlier, such as touch anddrag, click and drag, point moving, direction switching interface (e.g.direction switching key) input, and preset gesture according to the typeof a user input. Meanwhile, the adjustment parts 110 b and 120 b mayconstitute parts of the corresponding indicators 110 and 120 togetherwith the corresponding body parts 110 a and 120 a or may be interfaceswhich are additionally provided to the corresponding indicators 110 and120.

FIGS. 9B and 9C illustrate an embodiment in which the digital device 10performs video editing based on the third user input 20 c for shiftingthe location of at least one of the adjustment part 110 b of the firstindicator 110 and the adjustment part 120 b of the second indicator 120.In the present embodiment, the digital device 10 may reset the editinginterval 130 and the partial sequence 3 corresponding to the editinginterval 130 based on the location shifting of the adjustment parts 110b and 120 b. That is, the digital device 10 may reset the first frame 5a corresponding to the first indicator 110 based on the locationshifting of the adjustment part 110 b and reset the second frame 5 bcorresponding to the second indicator 120 based on the location shiftingof the adjustment part 120 b. In this case, the digital device 10 mayshift the first indictor 110 in correspondence to the location shiftingof the adjustment part 110 b and shift the second indicator 120 incorrespondence to the location shifting of the adjustment part 120 b.

More specifically, if the second indicator 120 is distant from the firstindicator 110 by the location shifting of the adjustment part 120 b ofthe second indicator 120 as shown in FIG. 9B, the second framecorresponding to the second indicator 120 is reset as 5 b_1. Then, thepartial sequence 3 includes n1 (n1>n) frames and the playback durationof the partial sequence 3 is increased to t1 (t1>t0). In spite of thelocation shifting of the second indicator 120, the playback speed of thepartial sequence 3 does not vary. Since the playback speed of thepartial sequence 3 is constant although the length of the editinginterval 130 is enlarged in correspondence to the increased playbackduration t1 of the partial sequence 3, the thickness of the editinginterval 130 can be kept constant.

In contrast, as illustrated in FIG. 9C, if the second indicator 120becomes near to the first indicator 110 by the location shifting of theadjustment part 120 b of the second indicator 120, the second framecorresponding to the second indicator 120 is reset to 5 b_2. Then, thepartial sequence 3 includes n2 (n2<n) frames and the playback durationof the partial sequence 3 is reduced to t2 (t2<t0). In spite of thelocation shifting of the second indicator 120, the playback speed of thepartial sequence 3 does not vary. Since the playback speed of thepartial sequence 3 is constant although the length of the editinginterval 130 is shortened in correspondence to the decreased playbackduration t2 of the partial sequence 3, the thickness of the editinginterval 130 can be kept constant.

On the other hand, FIG. 9D illustrates an embodiment in which thedigital device 10 performs video editing based on the third user input20 c for shifting an adjustment part while holding a body part of anindicator. In this embodiment, the digital device may generate freezeframes 4 of the frames 5 a and 5 b corresponding to the correspondingindicators 110 and 120. That is, the digital device 10 may generate afreeze frame 4 of the first frame 5 a in response to the third userinput 20 c for shifting the location of the adjustment part 110 b whileholding the body part 110 a and generate a freeze frame 4 of the secondframe 5 b in response to the third user input 20 c for shifting thelocation of the adjustment part 120 b while holding the body part 120 a.In this case, the playback duration of the freeze frame 4 of the firstframe 5 a may be determined based on the displacement of the adjustmentpart 110 b of the first indicator 110 and the playback duration of thefreeze frame 4 of the second frame 5 b may be determined based on thedisplacement of the adjustment part 120 b of the second indicator 120.

More specifically, if the location of the adjustment part 110 b of thefirst indicator 110 is shifted while holding the location of the bodypart 110 a of the first indicator 110 as illustrated in FIG. 9D, thedigital device 10 generates the freeze frame 4 of the first frame 5 a.The playback duration of the freeze frame 4 of the first frame 5 a isdetermined based on the shifted displacement of the adjustment part 110b and the digital device 10 inserts the freeze frame 4 of the firstframe 5 a into an area in which the first frame 5 a of the partialsequence 3 is located. In FIG. 9D, the digital device 10 generates n3freeze frames 4 from the frame 5 a to a frame 5 a_3 based on thedisplacement of the adjustment part 110 b and the playback duration ofthe freeze frame 4 is t3.

In the embodiment of the present invention, the digital device 10 maygenerate the freeze frames 4 of the indicators 110 and 120 in responseto the third user input 20 c of FIG. 9D irrespective of whether theediting interval 130 has been set on the timeline interface 100.Meanwhile, the digital device 10 may assign a display effect indicatingfreeze frames 4 in an interval on the timeline interface 100corresponding to an interval of the video sequence 1 in which the freezeframes 4 are generated. For example, the digital device 10 maydifferently adjust at least one of color, brightness, transparency, andpattern of a corresponding interval on the timeline interface 100 fromthe other intervals. Alternatively, the digital device 10 may adjust thelength of a first axis direction of an indicator at which the third userinput 20 c of FIG. 9D is received such that it has a length covering aninterval between the body part and adjustment part of the correspondingindicator.

FIGS. 10A to 10C illustrate a further embodiment in which the digitaldevice 10 provides a handle interface 140 for adjusting the playbackattributes of the partial sequence 3.

First, as illustrated in FIG. 10A, if the editing interval 130corresponding to the partial sequence 3 including the first frame 5 aand the second frame 5 b is set on the timeline interface 100, thedigital device 10 may provide the handle interface 140 which can adjustthe thickness of the editing interval 130. The handle interface 140 isconnected to the editing interval 130 and can be slid in the directionof the thickness of the timeline interface 100. The digital device 10receives the third user input 20 c of sliding the handle interface 140and adjusts the thickness and length of the editing interval 130 basedon the third user input 20 c. In addition, the digital device 10 adjuststhe playback speed and playback duration of the partial sequence 3 whilemaintaining the number of frames of the partial sequence 3 at n.

More specifically, as illustrated in FIG. 10B, if the handle interface140 moves toward the timeline interface 100 by the third user input 20c, the thickness of the editing interval 130 is reduced. The digitaldevice 10 enlarges the length of the editing interval 130 incorrespondence to the reduced thickness of the editing interval 130. Inthis case, the digital device 10 may enlarge the length of the editinginterval 130 in inverse proportion to the reduced thickness of theediting interval 130. Further, the digital device 10 changes theplayback duration of the partial sequence 3 to t1, which is longer thana prior playback duration t0, in correspondence to the enlarged lengthof the editing interval 130. Accordingly, the playback speed of thepartial sequence 3 becomes slow in proportion to the reduced thicknessof the editing interval 130.

On the contrary, as illustrated in FIG. 10C, if the handle interface 140moves toward the opposite side of the timeline interface 100, thethickness of the editing interval 130 is enlarged. The digital device 10shortens the length of the editing interval 130 in correspondence to theenlarged thickness of the editing interval 130. In this case, thedigital device 10 may shorten the length of the editing interval 130 ininverse proportion to the enlarged thickness of the editing interval130. Further, the digital device 10 changes the playback duration of thepartial sequence 3 to t2, which is shorter than the prior playbackduration t0, in correspondence to the shortened length of the editinginterval 130. Accordingly, the playback speed of the partial sequence 3becomes fast in proportion to the enlarged thickness of the editinginterval 130.

Meanwhile, according to another embodiment of the present invention, ifthe handle interface 140 is spaced by a preset distance or more from thetimeline interface 100 by the third user input 20 c, the digital device10 may delete or separate the editing interval 130 on the timelineinterface 100. Alternatively, if the handle interface 140 is distantfrom the timeline interface 100 at a preset rate or more by the thirduser input 20 c, the digital device 10 may delete or separate theediting interval 130 on the timeline interface 100. If the editinginterval 130 is deleted or separated from the timeline interface 100,the digital device 10 may delete the partial sequence 3 corresponding tothe editing interval 130 from the video sequence.

According to the present embodiment, a user can conveniently adjust theediting interval 130 using the handle interface 140. Especially, evenwhen the entire length of the editing interval 130 exceeds an areadisplayed on the digital device 10 according to the enlarged length ofthe editing interval 130, a user can easily adjust the length of theediting interval 130 using the handle interface 140. If the distancebetween the first indicator 110 and the second indicator 120 becomesvery short according to the shortened length of the editing interval130, it is difficult to adjust the length of the editing interval 120using the first indicator 110 or the second indicator 120. At this time,a user may use the handle interface 140 to minutely adjust the length ofthe editing interval 130.

FIGS. 11A to 11C illustrate another embodiment of a video editing methodaccording to the present invention.

First, FIG. 11A illustrates a state in which the editing interval 130 isset on the timeline interface 100. The digital device displays thumbnailimages 102 of a video sequence at a preset interval d on the timelineinterface 100. The thumbnail images 102 indicate images of frames of thevideo sequence corresponding to locations of the respective thumbnailimages 102 on the timeline interface 100. Meanwhile, the digital devicemay provide the handle interface 140 described with reference to FIGS.10A to 10C. The handle interface 140 may include a control part 140 afor receiving a third user input and a link part 140 b for connectingthe control part 140 a to the editing interval 130. According to theembodiment of the present invention, the link part 140 b may have apreset length L. In addition, according to this embodiment, the digitaldevice may provide a virtual guide interface 150 indicating the playbackspeed of the video sequence. The virtual guide interface 150 guides theplayback speed of the video sequence corresponding to the thickness ofthe timeline interface 100 of a preset level.

FIG. 11B illustrates an enlarged shape of the thickness of the editinginterval 130 according to an embodiment of the present invention. Thethickness of the editing interval 130 may be enlarged according to thevarious above-described embodiments of the present invention. That is,the thickness of the editing interval 130 may be enlarged by a slidinginput of at least one interval of the timeline interface 100, a slidinginput of at least one of the first indicator 110 and the secondindicator 120, or a location shifting input of the handle interface.

According to the embodiment of the present invention, when the thicknessof the editing interval 130 is enlarged, the digital device may adjustthe thickness of the editing interval 130 such that it has a convexshape. Namely, the digital device may adjust the thickness of theediting interval 130 such that the editing interval 130 becomesgradually thicker towards a central part from both ends at which thefirst indicator 110 and the second indicator 120 are located. Accordingto this embodiment, the thickness of the editing interval 130 may beadjusted to have a convex shape when the thickness of the editinginterval 130 exceeds a preset thickness (e.g. the basic thickness of thetimeline interface 100). Hence, if the playback speed of the partialsequence is higher than the basic playback speed of the video sequence,the digital device may provide a visual effect of expanding the editinginterval 130. In this case, the thickness of the central part of theediting interval 130 indicates the playback speed of the partialsequence corresponding to the editing interval 130. In FIG. 11B, sincethe central part of the editing interval 130 is located at an indicationof double speed (×2) on the virtual guide interface 150, it may beappreciated that the playback speed of the partial sequencecorresponding to the editing interval 130 is double speed. In this case,the thickness of the central part of the editing interval 130 may betwice the basic thickness of the timeline interface 100.

Meanwhile, when the thickness of the editing interval 130 is enlarged, apreset interval of the thumbnail image 102 displayed in the editinginterval 130 may be reduced to d1 (d1<d). The interval d1 of thethumbnail image 102 may be adjusted based on the playback speed of thepartial sequence corresponding to the editing interval 130. For example,if the playback speed of the partial sequence corresponding to theediting interval 130 in FIG. 11B is double speed, the digital device maychange the interval d1 to ½ times the basic interval d of the thumbnailimage 102 on the timeline interface 100. Then, a user can be intuitivelyaware of the playback speed of the partial sequence corresponding to theediting interval 130 through the interval of the thumbnail image in theediting interval 130.

Next, FIG. 11C illustrates a reduced shape of the thickness of theediting interval 130 according to an embodiment of the presentinvention. The thickness of the editing interval 130 may be reducedaccording to the various above-described embodiments of the presentinvention. That is, the thickness of the editing interval 130 may beshortened by a sliding input of at least one interval of the timelineinterface 100, a sliding input of at least one of the first indicator110 and the second indicator 120, or a location shifting input of thehandle interface.

According to the embodiment of the present invention, when the thicknessof the editing interval 130 is shortened, the digital device may adjustthe thickness of the editing interval 130 such that it has a concaveshape. Namely, the digital device may adjust the thickness of theediting interval 130 such that the editing interval 130 becomesgradually thinner towards a central part from both ends at which thefirst indicator 110 and the second indicator 120 are located. Accordingto the present embodiment, the thickness of the editing interval 130 isadjusted to have a concave shape when the thickness of the editinginterval 130 becomes thinner than a preset thickness (e.g. the basicthickness of the timeline interface 100). Hence, if the playback speedof the partial sequence is lower than the basic playback speed of thevideo sequence, the digital device may provide a visual effect ofshrinking the editing interval 130. In this case, the thickness of thecentral part of the editing interval 130 indicates the playback speed ofthe partial sequence corresponding to the editing interval 130. In FIG.11C, since the central part of the editing interval 130 is located at anindication of ½ speed (×½) on the virtual guide interface 150, it may beappreciated that the playback speed of the partial sequencecorresponding to the editing interval 130 is ½ speed. In this case, thethickness of the central part of the editing interval 130 may be ½ timesthe basic thickness of the timeline interface 100.

When the thickness of the editing interval 130 is shortened, a presetinterval of the thumbnail image 102 displayed in the editing interval130 may be enlarged to d2 (d2>d). The interval d2 of the thumbnail 102may be adjusted based on the playback speed of the partial sequencecorresponding to the editing interval 130. For example, if the playbackspeed of the partial sequence corresponding to the editing interval 130in FIG. 11C is ½ speed, the interval d2 may be adjusted to be twice thebasic interval d of the thumbnail image 102 on the timeline interface100.

According to still another embodiment of the present invention, when thethickness of the editing interval 130 is shortened, the digital devicemay reduce the length of the link part 140 b of the handle interface 140connected to the editing interval 130 to L2 (L2<L). In this case, thedigital device may reduce the length of the link part 140 b when thethickness of the editing interval 130 is less than the preset thickness(e.g. the basic thickness of the timeline interface 100). According tothis embodiment, if the playback speed of the partial sequence is lowerthan the basic playback speed of the video sequence, variation in thethickness of the editing interval 130 corresponding to variation in theplayback speed is small. Accordingly, when adjusting the thickness ofthe editing interval 130 using the handle interface 140, a user shouldminutely manipulate the handle interface 140 in the case of a lowplayback speed of the partial sequence.

For example, when the playback speed of the video sequence is changed todouble speed (×2) from 1 speed (×1), the thickness of the editinginterval 130 is increased to 2 a from a. Accordingly, a user needs toshift the handle interface 140 by ½a which is half the thicknessvariation (|2a-a|) of the editing interval 130. On the other hand, ifthe playback speed of the video sequence is changed to ½ speed from 1speed, the thickness of the editing interval 130 is reduced to (½)a froma. Then, a user should shift the handle interface 140 by (¼)a which ishalf the thickness variation (|(½)a-a|) of the editing interval 130.Namely, when the playback speed of the partial sequence is low, sincethe handle interface 140 should be minutely manipulated, manipulation ofthe handle interface 140 may be inconvenient.

Therefore, the digital device according to the embodiment of the presentinvention may reduce the length of the link part 140 a to L2 (L2<L) froma basic length L when the thickness of the editing interval 130 is lessthan a preset thickness. More desirably, the digital device may adjustthe length of the link part 140 a such that the length of the link part140 a is gradually reduced as the thickness of the editing interval 130becomes thinner. Then, a user can minutely adjust the playback speed ofthe partial sequence through the handle interface 140 even when theplayback speed of the partial sequence is low.

FIGS. 12A to 13C illustrate another embodiment of a video editing methodaccording to the present invention.

FIG. 12A shows an additionally provided interface when the thickness ofthe editing interval 130 becomes thicker than the basic thickness of thetimeline interface 100. Referring to FIG. 12A, the digital device mayprovide an interface 160 for deleting the editing interval 130. As shownin FIG. 12A, when the distance between the first indicator 110 and thesecond indicator 120 becomes shorter, the thickness of the editinginterval 130 is expanded. In this case, if the distance between thefirst indicator 110 and the second indicator 120 is nearer than a presetminimum length of the editing interval 130, the digital device mayprovide the interface 160 for deleting the editing interval 130. In thepresent invention, the interface 160 for deleting the editing interval130 may be provided by assigning user interfaces of various methods orgraphical effects on the editing interval 130 and may also be providedon other areas except for the editing interval 130.

As shown in FIG. 12B, a user may delete the editing interval 130 throughan input for the interface 160. The digital device deletes the partialsequence corresponding to the editing interval 130 from the videosequence in response to the user input for deleting the editing interval130. In addition, the digital device may perform adjustment such thatintervals (the first interval and the second interval) adjacent to bothsides of the editing interval 130 are adjacent to each other. Accordingto the present embodiment, the digital device may assign a graphicaleffect in which the editing interval 130 appears to burst in response tothe user input for the interface 160.

FIGS. 13A to 13C illustrate an additionally provided interface when thethickness of the editing interval 130 is thinner than the basicthickness of the timeline interface 100 according to an embodiment ofthe present invention. First, according to the embodiment of the presentinvention, the digital device may adjust the thickness of the editinginterval 130 such that it is maintained at a preset minimum thickness ormore. The digital device may pre-designate the minimum thickness of theediting interval and the minimum playback speed of the partial sequencebased on the minimum thickness of the editing interval. Accordingly,even if the thickness of the editing interval is reduced by a userinput, the digital device may adjust the thickness of the editinginterval such that it is not less than the preset minimum thickness. Forexample, the thickness of the editing interval 130 may become narrowerand reach the preset minimum thickness as illustrated in FIG. 13A. Atthis time, the length of the editing interval 130 reaches a presetmaximum length. The preset maximum length of the editing interval 130 isdetermined based on the length of the editing interval 130 duringinitial setting and the preset minimum thickness of the editing interval130. In FIG. 13A, the editing interval 130 reaches a threshold state inwhich the thickness of the editing interval 130 cannot be reduced anylonger and the length of the editing interval 130 cannot be enlarged anylonger.

As shown in FIG. 13B, if the user input 20 c through which the distancebetween the first indicator 110 and the second indicator 120 is furtherapart than the preset maximum length of the editing interval 130 isreceived, the digital device may adjust the editing interval 130 suchthat at least one area of the editing interval 130 is separated from theediting interval 130. In this case, the digital device may maintain thethickness of the editing interval 130 at the preset minimum thickness.If the user input 20 c is ended, the digital device may restore theediting interval 130 to the state of FIG. 13A.

Referring to FIG. 13C, the digital device may provide an interface forcompressive display of the editing interval 130. The interface forcompressive display of the editing interval 130 is an interface fordisplaying the editing interval 130 by shortening the length of theediting interval 130. In this embodiment, if the editing interval 130 isdisplayed in a reduced form, the digital device displays the editinginterval 130 by shortening the length of the editing interval 130 whilemaintaining the playback speed and playback duration of the partialsequence corresponding to the editing interval 130. The digital devicemay provide interfaces of various methods as the interface forcompressive display of the editing interval 130. For example, thedigital device may use a user input, such as double touch, double click,etc., with respect to the editing interval as the interface forcompressive display and provide an additional interface. The digitaldevice may display the editing interval 130 in the form of a spring asillustrated in FIG. 13C as a compressive display form. In this case, thedigital device may adjust the thickness of the spring such that itcorresponds to the thickness of the editing interval prior tocompressive display. According to an embodiment of the presentinvention, when the thickness of the editing interval 130 is thinnerthan the basic thickness of the timeline interface 100, the digitaldevice may provide the interface for compressive display of the editinginterval 130. Then, even if a plurality of editing intervals which isadjusted to have a low speed is included on the timeline interface 100,the digital device may provide a whole shape of the timeline interface100 to a user.

FIGS. 14A to FIG. 15C illustrate another embodiment of a video editingmethod according to the present invention.

Referring to FIGS. 14A to 14C, the digital device may provide a firsttrack interface 170 for a copy and paste operation of the partialsequence. The first track interface 170 may be activated by the presetthird user input 20 c. For example, as illustrated in FIG. 14A, thefirst track interface 170 may be activated in response to the third userinput 20 c of shifting the editing interval 130 in a preset direction toan area in which the first track interface 170 is activated. In thisembodiment, the preset direction may be a specific direction in whichthe editing interval 130 is separated from the timeline interface 100.More specifically, the third user input 20 c may include an input ofseparating the editing interval 130 from the timeline interface 100 tomove on the first track interface 170.

Meanwhile, if the first track interface 170 is activated, the digitaldevice may provide a paste indicator 175 which is movable on the firsttrack interface 170. The paste indicator 175 is an interfacecorresponding to a copied sequence of the partial sequence correspondingto the editing interval 130. A user may insert the copied sequence intothe video sequence by shifting the paste indicator 175 on the firsttrack interface 170.

Referring to FIG. 14B, a user may shift the paste indicator 175 on thefirst track interface 170. In this case, the digital device may providean indicator indicating a third location 105 on the timeline interface100 corresponding to the location of the paste indicator 175. Accordingto the present embodiment, the third user input 20 c may include aninput of shifting the paste indicator 175 on the first track interface170. According to another embodiment of the present invention, the thirduser input 20 c may include an input of separating the editing interval130 from the timeline interface 100 to move on the first track interface170. In this case, the digital device may specify the third location 105on the timeline interface 100 based on the third user input 20 c withoutproviding the additional paste indicator 175.

Meanwhile, as illustrated in FIG. 14C, if the movement of the pasteindicator 175 is completed, the digital device may paste a copiedediting interval 130 a to the third location 105 of the timelineinterface 100. The third location 105 is a specific location on thetimeline interface 100, corresponding to a movement completion locationof the paste indicator 175 on the first track interface 170. The digitaldevice inserts the copied sequence of the partial sequence into an areaon the video sequence corresponding to the third location 105 of thetimeline interface 100. Thus, the digital device may copy and paste thepartial sequence corresponding to the editing interval 130.

Next, referring to FIGS. 15A to 15C, the digital device may furtherprovide a second track interface 172 for a cut and paste operation ofthe partial sequence. The second track interface 172 may be activated bythe preset third user input 20 c. For example, as shown in FIG. 15A, thesecond track interface 172 may be activated in response to the thirduser input 20 c of shifting the editing interval 130 in a presetdirection to an area in which the second track interface 172 isactivated. In an embodiment of the present invention, the area in whichthe second track interface 172 is activated may be an area in adifferent direction from the area in which the first track interface 170is activated based on the timeline interface 100 or may be an areaspaced farther from the first track interface 170. In the presentinvention, the third user input 20 c may include an input of separatingthe editing interval 130 from the timeline interface 100 to move on thesecond track interface 172. A detailed description of the embodiment ofFIGS. 15A to 15C which is the same as or corresponding to the embodimentof FIGS. 14A to 14C will be omitted.

Referring to FIG. 15B, a user may shift the paste indicator 175 on thesecond track interface 174. As illustrated in FIG. 15C, if movement ofthe paste indicator 175 is completed, the digital device may paste thecopied editing interval 130 a to the third location 105 of the timelineinterface 100. Meanwhile, the digital device deletes the editinginterval 130 on the timeline interface 100. In this case, the digitaldevice may perform adjustment such that intervals (the first intervaland the second interval) adjacent to both sides of the editing interval130 are adjacent to each other. In addition, the digital device insertsthe copied sequence of the partial sequence to an area on the videosequence corresponding to the third location 105 of the timelineinterface 100. Meanwhile, the digital device deletes the partialsequence corresponding to the editing interval 130 from the videosequence. Through the above processes, the digital device may perform acut and paste operation of the partial sequence corresponding to theediting interval 130.

In the embodiment of the present invention, the digital device mayinterchange the areas in which the first track interface 170 and thesecond track interface 172 shown in FIGS. 14A to 15C are activated. Ifthe first track interface 170 or the second track interface 172 isactivated, the digital device may display the corresponding trackinterface on the display unit thereof. However, according to anotherembodiment of the present invention, the digital device may form avirtual track without displaying the activated track interface.

FIG. 16 illustrates a timeline interface 100 edited through a videoediting UI according to an embodiment of the present invention. Thetimeline interface 100 corresponds to a video sequence edited throughthe video editing UI of the present invention. As shown, the timelineinterface 100 includes at least one of editing areas 130 a, 130 b, and130 c corresponding to partial sequences in which the playbackattributes of a video sequence are edited. The editing areas may includethe editing area 130 a corresponding to a partial sequence in which aplayback speed is adjusted to be increased, the editing area 130 bdisplayed in a compressed form, and the editing area 130 c correspondingto a partial sequence in which a playback speed is adjusted to bedecreased. The thickness of the editing area 130 a may be thicker thanthe basic thickness of the timeline interface 100. The thickness of theediting area 130 c may be thinner than the basic thickness of thetimeline interface 100.

On the other hand, if the video sequence is played back on the videoediting UI, a progress indicator 108 indicating video sequence progressmay be provided on the timeline interface 100. The progress indicator108 may move at a constant speed on the timeline interface 100.Accordingly, when the progress indicator 108 moves along the editingarea 130 a, the playback speed of the partial sequence corresponding tothe editing area 130 a becomes faster than a playback speed prior toediting. When the progress indicator 108 moves along the editing area130 c, the playback speed of the partial sequence corresponding to theediting area 130 c becomes slower than the playback speed prior toediting. Meanwhile, when the progress indicator 108 moves along theediting area 130 b, the progress indicator 108 may move along a path ofthe editing area 130 b displayed in a compressed form. For example, ifthe editing area 130 b is displayed in the form of a spring, theprogress indicator 108 may move along a path of the spring form of theediting area 130 b.

FIG. 17 is a block diagram illustrating the digital device 10 accordingto an embodiment of the present invention.

Referring to FIG. 17, the digital device 10 of the present invention mayinclude a processor 11, a display unit 12, an audio output unit 13, acommunication unit 14, a sensor unit 15, a storage unit 16, and a powerunit 17.

First, the display unit 12 outputs images on a display screen. Thedisplay unit 12 may output images based on content implemented in theprocessor 11 or a control command of the processor 11. In the embodimentof the present invention, the display unit 12 may display a motionpicture editing UI, a timeline interface, etc. executed by the digitaldevice 10 and display images of specific frames of a video sequencespecified by the motion picture editing UI.

Next, the audio output unit 13 includes an audio output means such as aspeaker, an earphone, etc. The audio output unit 13 may output voicesignals based on content implemented in the processor 11 or a controlcommand of the processor 11. According to the embodiment of the presentinvention, the audio output unit 13 may output voice signals of a videosequence implemented by the video editing UI. In the present invention,the audio output unit 13 is optionally included in the digital device10.

Next, the communication unit 14 may transmit/receive data bycommunicating with external devices using various protocols. Thecommunication unit 14 may transmit/receive digital data such as contentby accessing a network wirelessly or by wire. In the present invention,the digital device 10 may use the communication unit 14 to receive thevideo sequence from an external device or a server and to transmit thevideo sequence edited through the video editing UI of the presentinvention to the external device or the server. In the presentinvention, the communication unit 14 is optionally included in thedigital device 10.

The sensor unit 15 may recognize a user input of the present inventionusing at least one sensor installed in the digital device 10 andtransmit the user input to the processor 11. The sensor unit 15 mayinclude a plurality of sensing means. As an embodiment, the plurality ofsensing means may include a gravity sensor, a geomagnetic sensor, amotion sensor, a gyro sensor, an acceleration sensor, an infraredsensor, an inclination sensor, a brightness sensor, an altitude sensor,an odor sensor, a temperature sensor, a depth sensor, a pressure sensor,a bending sensor, an audio sensor, a video sensor, a Global PositioningSystem (GPS) sensor, a touch sensor, etc. The sensor unit 15 refers to avariety of sensing means. The sensor unit 15 may sense various userinputs and user environments and transmit a sensing result so that theprocessor 11 can perform operation according to the sensing result. Theabove-described sensors may be included in the digital device 10 asseparate elements or may be included in the digital device 10 as atleast one integrated element.

The storage unit 16 of the present invention may store various digitaldata such as video, audio, photos, and applications. The storage unit 16indicates various digital data storage spaces such as a flash memory, aRandom Access Memory (RAM), a Solid State Drive (SSD), etc. In theembodiment of the present invention, the storage unit 16 may store videosequences and store video sequences edited through the video editing UIof the present invention.

The power unit 17 is a power source connected to a battery in thedigital device 10 or to an external power source and may supply power tothe digital device 10.

The processor 11 of the present invention may execute content receivedthrough data communication or content stored in the storage unit 16. Theprocessor 11 may implement various applications and process data insidethe digital device 10. The processor 11 may execute the video editing UIaccording to the embodiment of the present invention and edit the videosequence according to the control command of the video editing UI. Inaddition, the processor 11 may control the above-described units of thedigital device 10 and control transmission and reception of data betweenthe units.

The digital device 10 of FIG. 17 is shown as a block diagram accordingto the embodiment of the present invention and separate blocks areillustrated by logically distinguishing between elements of the digitaldevice. Accordingly, the above-described elements of the digital devicemay be integrated into one chip or multiple chips according to devicedesign.

FIG. 18 is a flowchart illustrating a video editing method according toan embodiment of the present invention. Each step of FIG. 18, which willbe described hereinbelow, is performed by the video editing UI of thepresent invention and may be controlled by the processor 11 of thedigital device 10 shown in FIG. 17.

First, the digital device provides a timeline interface corresponding toa video sequence (step S1810). As illustrated in FIG. 1, at least onethumbnail image of the video sequence may be displayed at a presetinterval on the timeline interface.

Next, the digital device receives a first user input for specifying afirst location on the timeline interface and a second user input forspecifying a second location on the timeline interface (step S1820). Asdescribed with reference to FIGS. 2A and 2B, the first locationcorresponds to the first frame of the video sequence and the secondlocation corresponds to the second frame of the video sequence.

The digital device sets an editing interval between the first locationand the second location of the timeline interface (step S1830). In thiscase, the digital device may provide a first indicator corresponding tothe first frame and a second indicator corresponding to the second frameat both ends of the editing interval. At least one of the firstindicator and the second indicator is movable on the timeline interface.As described with reference to FIG. 2B, the editing interval correspondsto the partial sequence between the first frame and second frame of thevideo sequence. According to the embodiment of the present invention,the digital device may set intervals adjacent to both sides of theediting interval on the timeline interface as a first interval and asecond interval.

The digital device receives a third user input with respect to theediting interval (step S1840). The third user input includes an input ofsliding at least one object of the timeline interface on the timelineinterface. The object may be at least one of the editing interval, thefirst interval, and the second interval on the timeline interface asdescribed with reference to FIGS. 3A to 6. The object may also be atleast one of the first indicator and the second indicator as describedwith reference to FIGS. 7A to 9D. The third user input may be an inputof sliding the handle interface connected to the editing interval asdescribed with reference to FIGS. 10A to 10C.

The digital device adjusts at least one of the thickness and length ofthe editing interval in response to the third user input (step S1850).The thickness of the editing interval is proportional to the playbackspeed of the partial sequence and the length of the editing interval isproportional to the playback duration of the partial sequence. Asdescribed with reference to FIGS. 3A to 15C, the digital device mayadjust the thickness and length of the editing interval according to thevarious embodiments of the present invention. Meanwhile, according tothe embodiment of the present invention, if the thickness of the editinginterval is reduced to a preset thickness or less, the digital devicemay adjust the thickness of the editing interval such that it has aconcave shape, and if the thickness of the editing interval is enlargedto the preset thickness or more, the digital device may adjust thethickness of the editing interval such that it has a convex shape. Inaddition, as described with reference to FIGS. 11A to 11C, the digitaldevice may adjust the interval of a thumbnail image displayed on thetimeline interface such that it corresponds to the thickness of theediting interval. That is, the digital device may reduce the displayedinterval of the thumbnail image when enlarging the thickness of theediting interval and may enlarge the displayed interval of the thumbnailimage when reducing the thickness of the editing interval.

The digital device edits the playback attributes of the partial sequencebased on the adjusted thickness and length of the editing interval (stepS1860). The playback attributes of the partial sequence include theplayback speed of the partial sequence. According to the embodiment ofthe present invention, the playback attributes of the partial sequencemay include playback/non-playback of the partial sequence. That is, thedigital device may delete the partial sequence as shown in theembodiment of FIGS. 12A and 12B and the deleted partial sequence may bedeleted from a playback sequence of the video sequence. According toanother embodiment of the present invention, the playback attributes ofthe partial sequence may include reverse playback/non-reverse playbackof the partial. That is, the digital device may generate the reverseplayback sequence of the partial sequence as shown in the embodiment ofFIGS. 6 and 7D. The reverse playback sequence is a reverse sequence inwhich frames of the partial sequence are reversed. If the playback speedof the partial sequence is adjusted according to the embodiment of thepresent invention, the playback duration of the corresponding partialsequence may also be adjusted. According to the embodiment of FIGS. 3Ato 6, the playback speed of the partial sequence may be adjusted whilekeeping the playback duration of the partial sequence constant. In thiscase, the number of frames included in the partial sequence may beadjusted.

Editing information of the video sequence edited through the videoediting UI according to the embodiment of the present invention may bestored in various ways. For example, the digital device may encode thevideo sequence based on the playback attributes of the edited partialsequence. That is, the digital device may generate a new video sequencein which the playback speed of the partial sequence and other playbackattributes are adjusted. According to another embodiment of the presentinvention, the digital device may generate additional informationcorresponding to the playback attributes of the edited partial sequence.The additional information is information about adjustment of theplayback speed of the partial sequence and other playback attributes andmay be included as header information of the video sequence. In thiscase, the digital device or external device may generate a videosequence in which the playback speed of the partial sequence and otherplayback attributes are reflected based on the additional information.

According to the present invention, the playback attributes of a videosequence can be edited through an intuitive and simple user input.

According to an embodiment of the present invention, a user can adjustthe number of frames of a partial sequence to be played back during apreset playback duration and thus can adjust the playback speed of thecorresponding partial sequence.

According to another embodiment of the present invention, a user canconveniently adjust the playback duration and playback speed of apartial sequence corresponding to a preset frame interval.

The present invention provides a handle interface for adjusting theplayback duration and playback speed of a partial sequence and thus auser can conveniently adjust the playback attributes of the partialsequence.

According to the embodiment of the present invention, the thickness andlength of an editing interval of a timeline interface corresponding to apartial sequence vary with variation in the playback attributes of thepartial sequence. In addition, a digital device provides various userinterfaces which can recognize variation in the playback attributes ofthe partial sequence. Accordingly, a user can intuitively recognizevariation in the thickness and length of an editing interval, and theadjusted playback attributes of the corresponding partial sequencethrough the various user interfaces.

It will be apparent to those skilled in the art that variousmodifications and variations can be made in the present inventionwithout departing from the spirit or scope of the inventions. Thus, itis intended that the present invention covers the modifications andvariations of this invention provided they come within the scope of theappended claims and their equivalents.

What is claimed is:
 1. A digital device comprising: a processorconfigured to control an operation of the digital device; a sensor unitconfigured to receive a touch input and transmit the touch input to theprocessor; and a display unit configured to output images based on acommand of the processor, wherein the processor is further configuredto: display a timeline interface corresponding to a video sequence,wherein the timeline interface includes a plurality of thumbnail imagesof the video sequence, a first body part and a first adjustment part, asecond body part and a second adjustment part, wherein the first bodypart and the first adjustment part are vertically in line and the secondbody part and the second adjustment part are vertically in line, playall of the video sequence during a first time period, receive a firsttouch input of sliding with respect to the first adjustment part,wherein direction of the first touch input of sliding is distance fromthe second adjustment part, adjust location of the first adjustment partbased on the first touch input of sliding, wherein location of the firstbody part is adjusted according to the location of the first adjustmentpart, receive a second touch input of sliding with respect to the secondadjustment part, wherein direction of the second touch input of slidingis distance from first adjustment part, adjust location of the secondadjustment part based on the second touch input of sliding, whereinlocation of the second body part is adjusted according to the locationof the second adjustment part, set a first playback interval between thefirst body part and the second body part, wherein the first playbackinterval corresponds to a partial sequence of the video sequence, set asecond playback interval, wherein the second playback intervalcorresponds to at least a part of the video sequence except the partialsequence, and play all of the video sequence with a first speed and asecond speed during a second time period based on the first touch inputof sliding and the second touch input of sliding, wherein the secondspeed corresponds to a speed of the first playback interval and thefirst speed corresponds to a speed of the second playback interval, thesecond speed is slower than the first speed, and the second time periodis longer than the first time period.
 2. The digital device according toclaim 1, wherein the processor is further configured to: receive a thirdtouch input of sliding with respect to the first adjustment part,wherein direction of the third touch input of sliding is distance fromthe second adjustment part, adjust location of the first adjustment partbased on the third touch input of sliding, wherein location of the firstbody part is adjusted according to the location of the first adjustmentpart, and the location of the first adjustment part by the third touchinput of sliding is farther to the second adjustment part than thelocation of the first adjustment part by the first touch input ofsliding, receive a fourth touch input of sliding with respect to thesecond adjustment part, wherein direction of the fourth touch input ofsliding is distance from the first adjustment part, adjust location ofthe second adjustment part based on the fourth touch input of sliding,wherein location of the second body part is adjusted according to thelocation of the second adjustment part, and the location of the secondadjustment part by the fourth touch input of sliding is farther to thefirst adjustment part than the location of the second adjustment part bythe second touch input of sliding, play all the video sequence in thefirst speed and the second speed during a third time period based on thethird touch input of sliding and the fourth touch input of sliding,wherein the third time period is longer than the second time period. 3.The digital device according to claim 1, wherein the processor isfurther configured to set the first playback interval by the first touchinput of sliding and the second touch input of sliding.
 4. The digitaldevice according to claim 2, wherein a first partial sequencecorresponds to a partial sequence by the first touch input of slidingand the second touch input of sliding and a second partial sequencecorresponds to a partial sequence by the third touch input of slidingand the fourth touch input of sliding.
 5. The digital device accordingto claim 4, wherein a playback speed of the first partial sequence and aplayback speed of the second partial sequence is same.
 6. The digitaldevice according to claim 1, wherein thickness of the first playbackinterval and thickness of the second playback interval is same.
 7. Thedigital device according to claim 2, wherein a third playback intervalcorresponds to a editing interval by the third touch input of slidingand the fourth touch input of sliding.
 8. The digital device accordingto claim 7, wherein thickness of the first playback interval andthickness of the third playback interval is same.
 9. The digital deviceaccording to claim 7, wherein length of the first playback interval isshorter than length of the third playback interval.
 10. The digitaldevice according to claim 1, wherein the processor is further configuredto set the first playback interval based on the location shifting of thefirst adjustment part and the second adjustment part.
 11. The digitaldevice according to claim 1, wherein a first indicator includes thefirst body part and the first adjustment part and a second indicatorincludes the second body part and the second adjustment part.
 12. Thedigital device according to claim 11, wherein the first touch input ofsliding corresponds to shifting the first adjustment part while holdingthe first body of the first indicator and the second touch input ofsliding corresponds to shifting the second part while holding the secondbody of the second indicator.
 13. The digital device according to claim12, wherein location of the first indicator corresponds to a first frameof the video sequence and location of the second indicator correspondsto a second frame of the video sequence.
 14. The digital deviceaccording to claim 13, wherein the processor is further configured togenerate freeze frame based on adjusting the first adjustment part andthe second adjustment part.
 15. The digital device according to claim14, wherein the processor is further configured to generate a firstfreeze frame of the first frame in response to the adjusted firstadjustment part and a second freeze frame of the second frame inresponse to the adjusted second adjustment part.
 16. The digital deviceaccording to claim 11, wherein the processor is further configured toprovide an interface for deleting the first playback interval whendistance between the first indicator and the second indicator is nearerthan a preset minimum length of the first playback interval by the firsttouch input of sliding and the second touch input of sliding.
 17. Thedigital device according to claim 1, wherein the processor is furtherconfigured to display at least one thumbnail image of the video sequenceat a preset interval on the timeline interface, wherein the thumbnailimage indicates an image of a frame of the video sequence correspondingto the location of the timeline interface.
 18. The digital deviceaccording to claim 1, wherein the processor is further configured togenerate additional information corresponding to the edited playbackspeed of the partial sequence.
 19. The digital device according to claim1, wherein the processor is further configured to encode the videosequence based on the playback speed of the partial sequence.
 20. Avideo editing method comprising: displaying a timeline interfacecorresponding to a video sequence, wherein the timeline interfaceincludes a plurality of thumbnail images of the video sequence, a firstbody part and a first adjustment part, a second body part and a secondadjustment part, wherein the first body part and the first adjustmentpart are vertically in line and the second body part and the secondadjustment part are vertically in line; playing all of the videosequence during a first time period; receiving a first touch input ofsliding with respect to the first adjustment part, wherein direction ofthe first touch input of sliding is distance from the second adjustmentpart; adjusting location of the first adjustment part based on the firsttouch input of sliding, wherein location of the first body part isadjusted according to the location of the first adjustment part;receiving a second touch input of sliding with respect to the secondadjustment part, wherein direction of the second touch input of slidingis distance from first adjustment part; adjusting location of the secondadjustment part based on the second touch input of sliding, whereinlocation of the second body part is adjusted according to the locationof the second adjustment part; setting a first playback interval betweenthe first body part and the second body part, wherein the first playbackinterval corresponds to a partial sequence of the video sequence;setting a second playback interval, wherein the second playback intervalcorresponds to at least a part of the video sequence except the partialsequence; and playing all of the video sequence with a first speed and asecond speed during a second time period based on the first touch inputof sliding and the second touch input of sliding, wherein the secondspeed corresponds to a speed of the first playback interval and thefirst speed corresponds to a speed of the second playback interval, thesecond speed is slower than the first speed, and the second time periodis longer than the first time period.